The pervasive diffusion of mobile communication devices and the technical improvements of location techniques are fostering the development of new applications that use the physical position of users to offer location-based services for business, social, or informational purposes. In such a context, privacy concerns are increasing and call for sophisticated solutions able to guarantee different levels of location privacy to the users. In this paper, we address this problem and present a solution based on different obfuscation operators that, when used individually or in combination, protect the privacy of the location information of users. We also introduce an adversary model and provide an analysis of the proposed obfuscation operators to evaluate their robustness against adversaries aiming to reverse the obfuscation effects to retrieve a location that better approximates the location of the users. Finally, we present some experimental results that validate our solution.

An obfuscation-based approach for protecting location privacy / C.A. Ardagna, M. Cremonini, S. De Capitani di Vimercati, P. Samarati. - In: IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING. - ISSN 1545-5971. - 8:1(2011), pp. 5089332.13-5089332.27.

An obfuscation-based approach for protecting location privacy

C.A. Ardagna
Primo
;
M. Cremonini
Secondo
;
S. De Capitani di Vimercati
Penultimo
;
P. Samarati
Ultimo
2011

Abstract

The pervasive diffusion of mobile communication devices and the technical improvements of location techniques are fostering the development of new applications that use the physical position of users to offer location-based services for business, social, or informational purposes. In such a context, privacy concerns are increasing and call for sophisticated solutions able to guarantee different levels of location privacy to the users. In this paper, we address this problem and present a solution based on different obfuscation operators that, when used individually or in combination, protect the privacy of the location information of users. We also introduce an adversary model and provide an analysis of the proposed obfuscation operators to evaluate their robustness against adversaries aiming to reverse the obfuscation effects to retrieve a location that better approximates the location of the users. Finally, we present some experimental results that validate our solution.
location-based services.; obfuscation techniques; Privacy
Settore INF/01 - Informatica
2011
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/148474
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